Do you have Thunderbolt capable motherboard?
Or wait, you've bought the latest and greatest that Apple has to offer?
If it's the former, good for you, go ahead and buy the hard drive because it's worth it.
If you're a mac fag, why are you even asking us, you probably have already bought it buy now because you seem to have a lot of money sitting around since you ca afford those macs.
Yes I now this feels personal because it is, several of my good friends have been really flaunting their Apple products and I just want to take it off their hands and bash it into their skull.